162 husqvarna..toasted..maybe

[inky]

was milling boards with my 162 when it got hot on clutch side it seems. it would rev good but under loads it dies out. i pulled muffler off to see piston looks good to my untrained eye. pulled plug to do compression test but can only get one turn on motor then seems to lock up but it turns freely without plug. all thoughts good or bad would be welcomed..thanks

 

[sledneck22]

Some easy things I'd check.
fuel filter/carb screen
air filter
Flywheel key
clutch springs

If naught, you could have pealed a c-clip out of the wrist pin and sent it through the transfers and now that it's shut off, it's fallen into the bottom end? or top end?
might be worth pulling the top end and having a lookskie.
So it won't turn over at all now but before when the problems started it would start and restart but died under load?

vac/pressure test would be good too if you can't find anything.
good luck, keep us posted.

 

[davidwyby]

If it’s locking up and won’t turn over I’d pull the top end off. 4 screws, pull the cylinder, carb, muffler all at once ala @afleetcommand

 

[inky]

finally got to look at husqvarna 162.. did compression test was showing 150..so then i pulled oil pump seal was torn and spring was out so then i checked flywheel side that seal was shot also.. wondering should i just do seals or seals and bearings...help..thanks

 

[davidwyby]

Pull the muffler, check for piston damage.

I bet next you will be pulling the cylinder.

 

[davidwyby]

 

[inky]

i did pull muffler and piston looked fine to my untrained eye i figured with compression at 150 it might be ok

 

[davidwyby]

i did pull muffler and piston looked fine to my untrained eye i figured with compression at 150 it might be ok

Yeah, probably.

I just had the same conundrum on a 266…seals only or brgs too. Lot safer to do brgs. Lot more work.

I’d pull the cyl and seals so it can rotate freely and carefully inspect, feel, listen to the bearings.

 

[inky]

thanks very much. i figured i would end up splitting the case.. so will do bearings and seals and check cylinder and piston to be sure..

 

[davidwyby]

Might throw a ring in there. I *think* compression might ought to be more like 175psi.

 

[inky]

i was going to ask what compression should be.. maybe i will get a piston and ring also

 

[davidwyby]

I would think just a caber ring unless the piston is sloppy in the bore.

 

[inky]

ok i will check piston.. thanks for the help it is much appreciated .. i will post again but might be awhile trying to finish haying

 

[smokey7]

I will bet the lower rod bearing went bad.

 

[davidwyby]

Good point, I forgot about the locking up thing.

 

[inky]

I will replace bearings seals o rings x ring piston with ring and all gaskets..plus plastic worm gear for oiler.. not sure if thats everything I should do but its a start..lol

 

[inky]

It was weird I was milling a board saw was idling and revving good but no power when it was working. Then I thought it was hot on clutch side so I shut it off. Took brake bar and chain off then the muffler. Piston looked ok to me so tried compression test. But with pull cord could only get one compression stroke and it would lock but if I waited a few seconds I could get another compression stroke. So without the sparkplug and no compression it would turn fine and not lock up